Understand your network.

A technical reference for internet connectivity, domain name resolution and basic network diagnostics. Clear information for everyday troubleshooting.

Connectivity

Learn how latency, packet loss and connection stability affect your internet experience.

DNS diagnostics

Understand DNS resolution, record types and the role of recursive resolvers.

Network information

Explore IP addressing, routing, transport protocols and common network terms.

Technical resources

Practical background information for diagnosing common connectivity issues.

About this resource

Speedtest API is an informational website about internet and network technologies. The content is provided for general technical reference.

Service information

This page is a static information resource. It does not run a speed test, collect diagnostic measurements or provide real-time network monitoring.